Supplemental road grader



" April 23, 1929. F.D. wlLsoN 1,710,329

` SUPPLEMENTAL ROAD GRADER med NW10, 192e s sheets-sheet 1 April 23, 1929. F. D. WILSON SUPPLEMENTAL ROAD GRADER Filed Nov. 10, 1925 3 Sheets-Sheet 2 April 23, 1929. F. D. wlLsoN SUPPLEMENTAL ROAD GRADER S ceu-Sheet 3 Patented Apr. 23,1925,

UNITED STATES PATENT OFFICE.4

FRED I). .WILSON, OF HARVEY, ILLINOIS, ASSIGNOR TO AUSTIN MANUFACTURING C0., 'i

' 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. 1

SUPPLEMENTAL GRADER.

Application mea November 1o, 192s. serieuI No. 147,401.

This invention relates to road graders, more particularly those sometimes called bank sloping machines-7 in which themain or road scraping blade of the machine 1s equipped at one end with a vert1cally, angularly adjustable blade capable of cutting surfaces which are angular with reference to the surface cut by the main blade. More particularly the invention is a machine for eco nomically complying,r with requirements of various State highway departn'ients relative to the construction of the earth shoulder at the sides of modern concrete highways .which have hertofore required in large part at least hand labor for the finishing operations, the expense sometimes running as high as $850 per mile for the inishing alone, it being possible by the use of this machine to do sald finishing without the use of hand labor.

The invention consists in mechanism capable of carrying out the foregoing and' other objectswhich can be easily and comparatively cheaply made; which is highly ef-v icient and otherwise satisfactory inopera tion and is not readily liable to get out of order. In some broad aspects, the inventlon is an improvement upon the bank'sloper of my prior application Serial Number 144,785, filed October 28, 1926.

More particularly the invention consists in detailed mechanism by which an inclined cutting blade may be pivotally and reciprocally attached to the main blade of a conventional road grader; in mechanism by which the outer end of the inclined blade is supported by independent mechanism some distance to the side of a conventional main grader and in devices operable from a pointk near said outerend` of the supplemental inclined blade, raising and lowering and otherwise adjusting the supplemental blade.

lThe invention further consists in numerous features and details of construction which will be hereafter more fully set forth in the specification and claims.

Referring to the drawingsin which like numerals designate the same parts throughout the several views: l f

Figure 1 is a side elevation of a machine illustrating this invention-in its preferred form.

Figure 2 is a side detail of a supporting i lever mechanism on the irregular line 2-2 of Figure 3.

Figure 3 is a plan view of the mechanism of Figure 1.

Figure 4 is a rear view of the mechanismV of Flgu'les 1 and 3 taken on the irregular line 4-4 of Figure 1.

The mechanism of this invention is applied to a conventional form of grader including rear Wheels 10, front wheels 12, connecting arched frame 14 equipped at the rear with an operators station or platform 16, the whole lating handwheel 40, the operator can in eonl ventional manner move chain 34 crosswise of the machine to swing the frame 26-,28-30 about pivot 22 crosswise of themachine in a horizontal plane land thereby laterally vary the position of the main road working blade 42. This blade 42 is rigidly secured through depending bracket arms 44 to a horizontally rotatable, conventional wheel 46 journaled on a part' 48 of frame 26-28-30. This wheel 46 is provided on its rear circumference with a segmental worm gear 50 engaged by a conventional worm not shown, located on shaft 52 back of bevel gear 54 appearing in Figure 1. This latter gear meshes with another bevel gear 56 driven through a'vuniversal joint 58 hv a shaft 60 equipped -at its rearend with a hand wheel A62 within ready reach of the operators station 16.' The operator at said station 16 can by manipulating wheel 62 in the proper direction operate the gearin mechanism described `to rotate wheelV ,46 in Aeither direction as desired tol chan e the angular, Vhorizontal position of main ladev 42. rllhe universal joint 58 permits this operation of the blade 42 in all horizontal, lateral positions of the frame 26-28-30 On each side of frame 26-28-30 is a horizontal pin or shaft 64 to which is pivotally attached an upwardly extending connecting rod 66. Theupper end of each of these rods is pivotally connected to an independent bell crank lever 68 pivotally supported at 70 on a suitable bracket 72 extending upwardly from the frame 14. The opposite arm of bell crank 68 is pivotally lconnected at 74 to a downwardly inclinedrod or rack 76 having at its lower 'end a rack 78 traversed by a pinion 80 operatable through gearing 82-84 by a hand wheel 86..-/As clearly'shown in the drawing, there is'one such hand wheel at each side of the machine adjacent to the operators station 16 and, obviously, by manipulating said hand wheel 86, the operator at the station can raise or lower a selected one or both of the sides of the frame 26-30, thereby raisv ingor lowering as desired either end of the main blade 42. The pivotal connections 64 heretofore referred to are conventionally such as to permit this adjustment in all lateral positions of the frame 26-30.

The front wheels 12 and the axle 24 therefor are conventionally rotatable in a horizontal plane for steering the machine through a conventionally connected, laterall exten/ding shaft 88 conventionally operata le at the rear of the machine through manipulation of hand wheel 90 located at the operators station.

The conventional grader, just described, is intended for work in the position shown in Figure 4 on earth bank 92 at the side of a modern cement road 94, it being the intention that the blade 42 shall bring the surface of earth bank 92 toisubstantially or a trifle below the surface of the cement pavement. In

order to insure this desired result, the rear or left hand end of blade 42 as seen in Figure4 is equipped with the depth gauge roller 96 adapted to travel upon the pavement edge. In the particular case here illustrated, this roller or wheel 96 is journaledon a suitable horizontal shaft 98 carried by and at right angles to a vertically disposed hub 100 telescopically enclosing a downwardly projecting bracket arm 102 rigidlysecured to the adjacent end of blade 42 by any suitable means as forinstance rivets 104. This hub 100 is A selectively positionable along various points on bracket arm 102 by any suitable clamping mechanism exemplilied by the nut 106. Adjustment of this nut mechanism 106 and consequently the hub 100 up and down bracket arm 102 changes the vertical position of depth gauge roller 96 with reference' to blade 42 and thus determines the position of the left hand end of blade 42 with reference to the cement road or pavement 94.

In order to assist the operator in determining whether or not blade 42 is cutting the bank 92 at a proper level throughout the cntire length of blade 42, said blade is equipped with a laterally extending bracket arm -108 carrying a depending plumb bob 110 located a substantial distance from wheel 9 4 above the cement pavement surface. This plumb bob 110`is suspended by a rod, chain, rope or other device 112 more or less adjustable as to. length by conventional meansnot shown so that the operator can by adjusting the length of this member 112, consequently the height of plumb bolo 110 with reference to the arm 108, predetermine exactly the angularity of blade 42.which is indicated when plumb bob 110 just touches the pavement surface as shown in Figure 4..

In the operation of the vmech anism thus tar described, the operator rstmanipulates the various controls before him on the station 16 to position blade 42 to cut the bank 92 exactly as desired and thereupon adjusts the height of depth gauge Wheel 96 and/or the plumb bob-supporting device 112 until in this position of blade 42, the plumb bob 110 just touches or very slightly clears the surface of cement pavement 94. Thereupon,A during further work of the machine, the operator has only to manipulate his controls of blade 42 to maintain the plumb bob in the pavement contact position shown and described to be sure that` the blade 42 is making exactly the desired cut in bank 92with reference to pavement 94.

The forward or right hand end of blade 42, as viewed' in Figure 4, is equipped 'with a suitable bracket 114, having mounted thereon the universal ball joint nut 116 through which is threaded elongatedscrew'shaft 118 extending longitudinally of-and secured at its opposite ends to a supplemental inclined sl'oper blade 120 designed to cut a ditch or other in- Y clined surface 122 extending downwardly from the u per surface of bank 92 which is cut by bla e 42. This screw 118 located as shown at the rear end of blade 120 is detachably secured thereto by suitable brackets 124 and 126 provided for the purpose. Screw shaft 118 extends beyond bracket 126 and there carries a bevel gear 128 operatively meshing with another bevel ear 130 jour- 'naled in an L-arm of a suitable supporting bracket 132 rigid with bracket 126. Gear 130 is rotatable by a shaft 134 manually manipulatable by a hand crank-136. Manual rotation of this cranke136 is transmitted through with this reciprocation of blade 120 With reference to blade 42 as Well as when no such reciprocation is taking place.

The work for which the machine of this invention is designed requires such a long blade 120 that it is impractical to support its outer end from the main tractor frame and control it from the operators station16 as is shown, described and claimed in said before mentioned companion application, and the supporting'. of the outer end of blade 120 therefore 'in this case accomplished through the agency of a supplemental truck or trolley running parallel to the main grader supported by wheels 138 and 140 traveling at or near the bottom of the inclined surface 122l cut by blade 120. Wheels 138 and 140 support a longitudinal frame 144.v Each wheel is preferably but not necessarily carried in a caster-like mounting 148 journaled on a vertical pivot 152 in the frame 144. Rigidly secured to frame 144 at points conveniently adjacent to its opposite ends are vertically disposed brackets 156 and 158 each operatively connected by `parallel rods 160 and 162 extending diagonally upward as shown in Figure `4, pivotally connected at their opposite en'ds to suitable brackets 164 and 166, respectively, carried by horizontal cross-frame members 168 attached to andlextending from the adjacent side of frame 14. The brackets 'and parallel rods described constitute parallel link connections between the main grader and the supplemental truck or trolley so that in all'vertical positions of the truck or trolley and consequently of blade '120 as hereafter described, the trolley is in a vertical position crank arm 180 from which depends a connecting rod 182 loosely,pivotally connected at 184 to the lower or forward end portion of blade 120. This shaft 178 and consequently crank arm 180 is rockable from the operators supplemental station 170 by manipulation of a hand wheel 186 operatively connected to shaft 17 8 through conventionalgearing 188. By turning hand wheelv 186, the operator can, therefore, manipulate crank arm 180 to raise or lower blade 120 and consequently change its angularity with reference to blade 42. Rigidly secured to blade 120 somewhat avd- 'jacent to the pivotal connection 184 of conneetipgkrpd 182 are hinge brackets 190 and 192 having journaled therein a vertical hinge pintle 194 carrying other hinge brackets 196 and 198 rigidly secured to the draft gear lever 200 connected at its forward end to draft cable 202 leadingto the tractor or other source of power which is attached to the forward end not shown of draft tongue 18 andcompels the main grader along the road. The rear end of draft gear lcver'200 is pivotally connected at 204 to av vertically extending rod 206 pivoted at its upper end to a supplemental bracket 208 on the upper side of frame member 144. The mounting, shown and described, permits all desired movements of the blade 120 occasioned-by the operators manipulation from platform 170 of Wheel 186 of crank arm 136.

ln the complete operation of the mechanism of this invention, two operators are provided, one on platform 16, the other on platform 170. By manipulation of the proper hand wheels before him, the operator on platform station y16 steers the machine,V raises or lowers either end of blade 42, shifts the blade bodily laterally of the main grader or changes the l angular position of blade 42 in a horizontal plane with reference to the main grader and the operator -on platform 170 simultaneously or successively as required manipulates crank 136 toangularly raise or lower the upper end of blade 120 and, manipulates wheel 186to raise or lower the forward or lower end of blade 120. As any manipulation of blade 42 `by the operator at-station 16 necessarily affects blade 120itwill be seenthat the operators can between lthem effect all desired possible adjustments of the two blades 42v and -120 to effect proper treatment'of the earth bank 92 not only on its upper surface but on its inelined surface 122. l

The four pivotal connections 210 vand 212 at opposite ends of the'links 160 and.\162 are quite loose so as to provide free vertical movement fol` the supplemental truck mechanism and also a limited longitudinal movement withreference tothe main grader as'may be required by the condition of material travcrsed by the wheels 138 and 140. From the foregoing, it is apparent that the supplemental-truck mechanism traverses the bottom of the ditch or whatever 1s being formed by blade under the influence of gravity, viz: l

its own weight, and whatever tendency there is of the blade 120 to dig into the soil in front of inclined surface 122. j

The connecting rod 182 is provided intermediate of its length with-two pivot connections 214 and216 so constructed and arranged that longitudinal ad'ustment of blade 120 under control of cran v136 may take place in all vertical positions of the outer end of the blade 120 under the control ofrod .182.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1.- In combination with a road grader hav- ,ingv a main frame, supporting wheels and a road working blade, a supplemental blade pivotally connected to one end of the road working blade for movement in a vertical plane, and a separate road traversing support for the outer end of the supplemental blade.

2. lln combination with a road grader having a main frame, supporting wheels and a road working blade, a supplemental blade pivotally connected to one end of the road workingv blade for movement 'in a vertical plane, a separate road traversing support for the outer end of the supplemental blade, said main grader andthe separate support adapted to, be pulled in unison along the ground.

3. lln combination with a road grader having a main frame, supporting wheels and a road working blade, a supplemental blade pivotally connected to one end of the road Working blade for movement in a vertical plane, a separate road traversing support for the outer end of the supplemental blade, and means adjusting the angularity of the supplemental blade by changing the vertical position ol' lits outer swinging end. j

4:. lln combination with a road grader having a main frame, supporting wheels and a road working blade, a supplemental blade 'pivotally connected to one end of the road working blade for movement in a vertical plane, a separate road traversing support 'lor the outer end of the supplemental blade, said main grader and the separate support adapted -to be pulled in unison along the r ground, and means adjusting the angularity of theisupplemental blade by'changing the vertical position of its outer swinging end.

5. ln combination with a road grader having a main rame,'supporting wheels and a road working blade, a supplementalrblade pivotally connected to one end of the road working blade orfmovement in a vertical plane, a vseparate road traversing support for the outer end of the supplemental blade, and means adjusting vthe angularity of the supplemental blade by changingv the position of its end adjacent the main road working blade.

6. lln combination with a road grader having a main frame, supporting wheels and a road working blade, Aa supplemental blade pivotallyconnected toy one end'of the road working bladefqr movement in a vertical plane, a separate road traversing support for the outer end of the supplemental blade, said main A grader and the separate support adapted to be pulled in unison along the ground, and means adjusting the angularity of the supplemental blad'e'by changing the position of its end adjacent the main road working blade.

7. In combination with a road grader having a main trame, supporting wheels and a road working blade, a supplemental blade pivotall and reciprocally connected to one end of t e road working blade for movement avides@ in a vertical plane, manually operable means .for so reciprocating the supplemental blade,

and a separate road traversing support for the outer end of the. supplen'iental blade, operable in all positions ot' the pivotally longitudinally adjustable connection between the two blades.

9. ln combination with a road grader liaving a main frame, supporting wheels and a road working blade, a supplemental blade pivotally and reciprocally connected to one end of the road working blade for movement in a vertical plane, operable means for so reciprocating the supplemental blade, a separate road traversing support for the outer end of. the supplemental blade, said main grader and the separate support adapted to be pulled in unison along the ground, and means adjusting the angularity of the si'xpplenriental blade by changing the *vertical position ot its outer swinging end, operable in all positions ot the pivotally longitudinally adjustable connection between the two blades.

10. ln combination with a road grader having a main trame, supporting wheels and a road working blade, a supplemental blade pivotally and reciprocally connected to one end of the road working blade for movement in a vertical plane, manually operable means i for so reciprocating the supplemental blade, a separate 'road traversing support for the outer end of the supplemental blade,and means adjusting the angularity of the supplemental blade by/clianging the position -ot its adjacent end of the main roadworking blade, operable in all positions of' the pivotally longitudinally adjustable connection be tween the two blades. V

l11. In combination with a road grader having a main trame, supporting Wheels and a road working blade, a supplemental blade pivotally and reciprocally connected to one end of the road working blade for movement in a vertical plane, manually operable means for so reciprocating the supplemental blade, a separate road traversing support for` the outer end of the supplemental blade, said main grader and the separate support adapted to be pulled in unison along the ground, and means adjusting the angularity ot' the supplen'iental blade by changing the positlon of its adjacent end ot the main road `working blade, operable in all positions of the pivotally longitudinally adjustable connection between the two blades.

l2. In combination with a road 'grader having a main frame, supporting wheels and arad'working blade, a supplemental blade pivotally connected to one end of the road Working blade for movement in a vertical plane, a separate'road traversing support for 'the outer end of the supplemental blade, and

means adjusting `the angularity ot the supplemental blade bychanging the vertical position of its end adjacent the main road Working blade.

13. In combination with aroad grader having a main frame, supporting Wheels and a road working blade, a supplemental blade pivotally connected to one end of the road Working blade for movement in a vertical plane. a separate road traversing support for the outer end of the supplemental blade, said main grader and the separate support adapted to-be pulled in unison along the ground, and means adjusting the angularity of the supplemental blade by changing the vertical position of its end adjacent the main road Working bladel 14. Incombination with 4:L road grader having a main frame, supporting Wheels and a road working blade, a supplemental blade pivotally connected to one end of the road working blade for movement in a vertical plane. a separate road traversing'support for the outer end of thesupplemental blade, and

means adjusting the angulari'tv of the supplemental blade bv'changing the horizontal angular position ofits end adjacent the main road working blade.

15. In combination with a road .grader having a main frame` supporting wheels and a road working blade` a supplemental blade pivotally connected'to one end ofthe road Working blade for movement in a vertical pl ane` a separate road traversing support for the outer end of the supplemental blade. said main `grader and the separate support adapted to be `p ulled in unison along the ground, and means adjusting the angularitv of the supplemental blade by changing the horizontal angular position of its end adjacent .the main road Working blade.

16. I combination with a road grader having a'main frame, supporting` wheels and a road. working blade` a supplemental blade pivotallyconnected to one end. of the road working blade for movement ina vertical plane, a separate .road traversing support for the outer end of the supplemental blade, and means adjusting the .angularitv of the supplemental blade b v changing the horizontal position of its end adjacent the main road working v,blade transversely of the main grader.

17. In combination with a road grader having a main frame, supporting Wheels and a road working blade, a supplemental blade pivotally connected to one end of the road working blade ormovementin` a vertical plane, a separate road traversing support for the outer end of the supplemental blade, said main grader and the separate support adapted to lbe pulled in unison along the ground, and means adjusting the angularity of the Y supplemental blade'by changing the horizontal position of its' end adjacent the main road Working blade transversely of the main grader.I

18. In combination with a road grade having a main frame, supporting wheels andV a road working blade, a supplemental blade pivotally-connected to one end of the road Working blade for movement in a vertical plane, a separate road traversing support for the outer end of the supplemental blade, and means adju-sting the angularity of the supplemental blade by changing the verticalposition of its outer Swingin end, and means adjusting the agularity o the supplemental blade by changing the position of its end adjacent the main road working blade.

19. In combination with a road graderl having a main frame, supporting Wheels and a road working blade, a supplemental blade pivotally connected to one end of the road Working .blade for movement in a vertical plane, a separate road traversing support for the outer end of the supplemental blade, said main rader andthe separate support adapted to e pulled in unison along the round, neansv adjusting the angularity oftie supplemental blade 4by changing the vertical position of its outer swinging end, and means 4adjusting' the angularity of the supplemental blade by changing the position of its lend adjacent thelmain` road working blade.

20. In combination with a road grader having a main frame, supporting wheels and a road Working blade, a supplemental blade pivotally connected toone end of the road working blade for movement'in a 'vertical plane, a separate road traversing support for the outer end of the supplemental blade, and means causing the separate road traversing support to always move parallel to the main grader.

2l. In combination with a road grader having a main frame, supporting Wheels and a road Working blade, a supplemental Vblade pivotallj7 connected to one end of the road Working blade for movement in a vertical plane, aseparate road traversing support the outer end otn the supplemental blade, means' causing the separate road traversing l support to always move parallel to the main grader, said means permitting relative vertical movement between the grader and road traversing support.

23 -lln combination with a road grader having a main frame, supporting wheels and a road working blade, a supplemental blade pivotally connected to one end ot the road working blade for movement in a vertical plane, a separate road traversing support tor the outer end ot the supplemental blade, said main rader and the separate support adapted to e pulled in unison along the' ground, means causing the separate road traversing support to always move parallel to the main grader, and means permitting rel^tive vertical movement between the grader and road traversing support.

2a. lln combination with a road grader having a main trarne, supporting wheels and a road working blade, a supplemental blade pivotally and reciprocally connected to one end ot the road working blade for movement in a vertical plane, manually operable means for so reciprocating the supplemental blade,

a separate road traversingl support tor the outer end oit the supplemental blade, and an operators station on the road traversing supl inrosa@ port from, which said manually operable means maybe manipulated.

25. ln combination with a road grader having a main frame, supporting wheels and a' road working blade, a supplemental blade pivotally and reciprocally connected to one end of the road working blade tor movement in a vertical plane, manually operable means for so reciprocating the supplemental blade, a separate. road traversing support for the outer end of the supplemental blade, operable l in all positions of the pi'votally longitudinally adjustable connection between the two blades, an opera-tors station on the road traversing support from which said manually operable means may be manipulated, and from which station said .vertical adjustment of the supplemental blade may be made 26. ln combinationA with a road grader liaving a main frame, supporting wheels and a road working blade, a supplemental blade pivotally connected to one' end of the road working blade for movement in a vertical plane, a separate road traversing support Jt'or the outer end of the supplemental blade,

and 'a depth gauge indicating mechanism at the opposite end of the main blade.

lnv witness whereof, ll have hereunto sub scribed fmy name. A

FRED l). lfl/'lllllSNA 

